<template>
  <view
    :class="[
      styleType === 'text'
        ? 'segmented-control--text'
        : 'segmented-control--button',
    ]"
    :style="{ borderColor: styleType === 'text' ? '' : activeColor }"
    class="segmented-control"
  >
    <view
      v-for="(item, index) in values"
      :class="[
        styleType === 'text'
          ? 'segmented-control__item--text'
          : 'segmented-control__item--button',
        index === currentIndex && styleType === 'button'
          ? 'segmented-control__item--button--active'
          : '',
        index === 0 && styleType === 'button'
          ? 'segmented-control__item--button--first'
          : '',
        index === values.length - 1 && styleType === 'button'
          ? 'segmented-control__item--button--last'
          : '',
      ]"
      :key="index"
      :style="{
        backgroundColor:
          index === currentIndex && styleType === 'button' ? activeColor : '',
        borderColor:
          (index === currentIndex && styleType === 'text') ||
          styleType === 'button'
            ? activeColor
            : 'transparent',
      }"
      class="segmented-control__item"
      @click="_onClick(index)"
    >
      <view class="layout">
        <text
          :style="{
            color:
              index === currentIndex
                ? styleType === 'text'
                  ? activeColor
                  : '#fff'
                : styleType === 'text'
                ? '#000'
                : activeColor,
          }"
          :class="[
            'segmented-control__text',
            index == currentIndex ? 'active-text' : '',
          ]"
          >{{ item }}</text
        >
      </view>
      <view
        class="icon-up-fill iconfont icon"
        style="color: #ffffff"
        v-if="index === currentIndex"
      >
      </view>
    </view>
  </view>
</template>

<script>
export default {
  name: "UniSegmentedControl",
  props: {
    current: {
      type: Number,
      default: 0,
    },
    values: {
      type: Array,
      default() {
        return [];
      },
    },
    activeColor: {
      type: String,
      default: "#007aff",
    },
    styleType: {
      type: String,
      default: "button",
    },
  },
  data() {
    return {
      currentIndex: 0,
    };
  },
  watch: {
    current(val) {
      if (val !== this.currentIndex) {
        this.currentIndex = val;
      }
    },
  },
  created() {
    this.currentIndex = this.current;
  },
  methods: {
    _onClick(index) {
      if (this.currentIndex !== index) {
        this.currentIndex = index;
        this.$emit("clickItem", { currentIndex: index });
      }
    },
  },
};
</script>

<style lang="scss" scoped>
@import "@/uni.scss";

.segmented-control {
  /* #ifndef APP-NVUE */
  display: flex;
  box-sizing: border-box;
  /* #endif */
  flex-direction: row;
  height: 46px;
  overflow: hidden;
}
.layout {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}
.segmented-control__item {
  /* #ifndef APP-NVUE */
  display: inline-flex;
  box-sizing: border-box;
  /* #endif */
  position: relative;
  flex: 1;
  justify-content: center;
  align-items: center;
}

.segmented-control__item--button {
  border-style: solid;
  border-top-width: 1px;
  border-bottom-width: 1px;
  border-right-width: 1px;
  border-left-width: 0;
}

.segmented-control__item--button--first {
  border-left-width: 1px;
  // border-top-left-radius: 5px;
  // border-bottom-left-radius: 5px;
}

.segmented-control__item--button--last {
  // border-top-right-radius: 5px;
  // border-bottom-right-radius: 5px;
}

.segmented-control__item--text {
  border-bottom-style: solid;
  border-bottom-width: 3px;
}

.segmented-control__text {
  font-size: 14px;
  line-height: 20px;
  text-align: center;
}
.active-text {
  // font-size: 20px;
}
.icon {
  position: absolute;
  bottom: 0;
}
</style>
